I am using a similar thing as u mentioned above. I want to pass some values to the action. How do i do this?

<?php echo CHtml::dropDownList('license_id', 'license',
License::items(),
array(
'empty'=>'Select License for this order',
'class'=>'span4',
'submit'=>array('order/addLicense', 'id'=>$model->orid), // id - will be sent as part of URL
'params'=>array('license_id'=>'js: $(this).val()'), // license_id will be send via POST and its value is selected value of dropDown
'csrf'=>true, // CSRF turned on in main config
));
?>